The best estimator of the difference between two population means is the difference between two sample means .

Question

The best estimator of the difference between two population means  is the difference between two sample means  .

Quizplus · Accepted Answer

The best estimator of the difference between two population means is the difference between two sample means, as long as the samples are random and representative of their respective populations. This is the basis for the commonly used t-test for comparing the means of two populations.

The Best Estimator of the Difference Between Two Population Means